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Magnetochemistry, Volume 9, Issue 2

2023 February - 25 articles

Cover Story: The barrier to spin flipping within a crystal is the magnetocrystalline anisotropy energy (MAE). Developing novel materials, particularly antiferromagnets where the MAE is high, can be important for creating new, high-performance spintronic devices. In this computational study, we treat this barrier using the transition state theory, which not only considers the variation in spin-space, but also allows the relaxation of atomic positions to find the minimum energy pathway which is associated with the MAE. Critically, this leads to a significant correction (~20%) to the MAE for antiferromagnetic systems due to the structural relaxation. This same magnetostructural coupling also suggests a potential new method for directly evaluating the attempt frequency for the spin flipping. View this paper
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Articles (25)

  • Article
  • Open Access
1,976 Views
15 Pages

Diffusion weighted magnetic resonance imaging (DW-MRI) technique probing the microscopic movement of water molecules in tissue, allows for the quantification of water diffusivity and the contribution of perfusion to the total amount of water. In the...

  • Feature Paper
  • Review
  • Open Access
7 Citations
3,069 Views
19 Pages

We review the magneto-structural properties of electron–electron correlated quasi-one- dimensional (1D) molecular organics. These weakly localized quarter-filled metallic-like systems with pronounced spin 1/2 antiferromagnetic (AF) interactions...

  • Article
  • Open Access
40 Citations
4,565 Views
15 Pages

Comparative Study of the Photocatalytic Degradation of Crystal Violet Using Ferromagnetic Magnesium Oxide Nanoparticles and MgO-Bentonite Nanocomposite

  • Sally E. A. Elashery,
  • Islam Ibrahim,
  • Hassanien Gomaa,
  • Mohamed M. El-Bouraie,
  • Ihab A. Moneam,
  • Shimaa S. Fekry and
  • Gehad G. Mohamed

In this work, the exploitation of the synthesized magnesium oxide nanoparticles and MgO-bentonite nanocomposite as an effective photocatalyst has been reported. They were utilized to study their applicability for the photocatalytic degradation of cry...

  • Feature Paper
  • Article
  • Open Access
3 Citations
3,012 Views
12 Pages

A 3D Coordination Polymer Based on Syn-Anti Bridged [Mn(RCOO)2]n Chains Showing Spin-Canting with High Coercivity and an Ordering Temperature of 14 K

  • Soumen Kumar Dubey,
  • Maxcimilan Patra,
  • Kajal Gupta,
  • Subham Bhattacharjee,
  • Rajat Saha and
  • Carlos J. Gómez-García

A new 3D manganese(II) coordination polymer, formulated as [Mn3(HL)6] (1) (where H2L = 6-hydroxypicolinic acid), has been hydrothermally synthesized and characterized by single-crystal X-ray crystallographic analysis along with other spectroscopic an...

  • Article
  • Open Access
4 Citations
2,911 Views
12 Pages

Magneto-Optical Faraday Effect in Quasicrystalline and Aperiodic Microresonator Structures

  • Daria O. Ignatyeva,
  • Polina V. Golovko and
  • Vladimir I. Belotelov

We theoretically and numerically investigate magnetophotonic microresonators formed by a magnetic layer sandwiched between two reflective multilayers with different layer arrangements. Quasicrystals with the Fibonacci layer sequence and aperiodic str...

  • Feature Paper
  • Article
  • Open Access
1 Citations
2,795 Views
9 Pages

Vibronic Relaxation Pathways in Molecular Spin Qubit Na9[Ho(W5O18)2]·35H2O under Pressure

  • Janice L. Musfeldt,
  • Zhenxian Liu,
  • Diego López-Alcalá,
  • Yan Duan,
  • Alejandro Gaita-Ariño,
  • José J. Baldoví and
  • Eugenio Coronado

In order to explore how spectral sparsity and vibronic decoherence pathways can be controlled in a model qubit system with atomic clock transitions, we combined diamond anvil cell techniques with synchrotron-based far infrared spectroscopy and first-...

  • Article
  • Open Access
2,261 Views
14 Pages

The Phase Space Density Evolution of Radiation Belt Electrons under the Action of Solar Wind Dynamic Pressure

  • Peng Hu,
  • Haimeng Li,
  • Zhihai Ouyang,
  • Rongxin Tang,
  • Liangjin Song,
  • An Yuan,
  • Bopu Feng,
  • Yangyang Wang and
  • Wenqian Zou

Earth’s radiation belt and ring current are donut-shaped regions of energetic and relativistic particles, trapped by the geomagnetic field. The strengthened solar wind dynamic pressure (Pdyn) can alter the structure of the geomagnetic field, wh...

  • Communication
  • Open Access
1 Citations
1,996 Views
10 Pages

The martensitic phase transition and exchange bias effect of the Ni-Mn-based ferromagnetic shape memory alloys (FSMAs) Ni45Co5Mn37In13 (Ni-Co-Mn-In) films are investigated in this paper. The martensitic transformation properties of the Ni-Co-Mn-In al...

  • Article
  • Open Access
2 Citations
2,114 Views
11 Pages

Magnetoelectric (ME) laminated composites with strong ME coupling are becoming increasingly prevalent in the electron device field. In this paper, an enhancement of the ME coupling effect via transition-layer implantation for co-fired lead-free lamin...

  • Feature Paper
  • Article
  • Open Access
1 Citations
2,508 Views
10 Pages

Zero-Field Splitting in Cyclic Molecular Magnet {Cr8Y8}: A High-Frequency ESR Study

  • Zhendong Fu,
  • Zhong-Wen Ouyang,
  • Qian-Cheng Luo,
  • Yan-Zhen Zheng,
  • Wei Tong,
  • Huanpeng Bu,
  • Hanjie Guo and
  • Jin-Kui Zhao

Cyclic 3d-4f molecular magnets have received considerable attention owing to their potential applications in high-density data storage and quantum information processing. As a rare example of ferromagnetic polynuclear Cr rings, {Cr8Y8} represents a v...

  • Article
  • Open Access
2 Citations
3,651 Views
14 Pages

A Pre-Seismic Anomaly Detection Approach Based on Earthquake Cross Partial Multi-View Data Fusion

  • Yongming Huang,
  • Kun’ao Zhu,
  • Wen Shi,
  • Yong Lu,
  • Gaochuan Liu,
  • Guobao Zhang and
  • Yuntian Teng

It is a challenge to detect pre-seismic anomalies by using only one dataset due to the complexity of earthquakes. Therefore, it is a promising direction to use multiparameteric data. The earthquake cross partial multi-view data fusion approach (EQ-CP...

  • Feature Paper
  • Article
  • Open Access
8 Citations
3,201 Views
13 Pages

Fine-Grained Tb3Al5O12 Transparent Ceramics Prepared by Co-Precipitation Synthesis and Two-Step Sintering

  • Lixuan Zhang,
  • Xiaoying Li,
  • Dianjun Hu,
  • Mariya Dobrotvorska,
  • Roman Yavetskiy,
  • Zhengfa Dai,
  • Tengfei Xie,
  • Qiang Yuan,
  • Haohong Chen and
  • Jiang Li
  • + 1 author

In recent years, transparent terbium aluminum garnet (TAG) ceramics have attracted much attention for use in high-power Faraday isolators. Fine-grained ceramics usually possess better mechanical properties and accordingly better service performance....

  • Article
  • Open Access
10 Citations
2,202 Views
13 Pages

The main objective of this work is to analyze and compare the numerical solutions of an unsteady separated stagnation point flow due to a Riga plate using copper–alumina/water and graphene–alumina/water hybrid nanofluids. The Riga plate g...

  • Article
  • Open Access
10 Citations
2,985 Views
14 Pages

Effect of Bismuth on the Structure, Magnetic and Photocatalytic Characteristics of GdFeO3

  • Yudie Ma,
  • Hui Shen,
  • Yating Fang,
  • Heyan Geng,
  • Yu Zhao,
  • Yasheng Li,
  • Jiayue Xu and
  • Yunfeng Ma

In this paper, a series of Gd1-xBixFeO3 (x = 0, 0.1, 0.3, 0.5, 0.7, 0.9, 1) nanoparticles have been readily synthesized by a green and facile sol–gel method. It gradually changed from the orthorhombic structure (space group Pbnm) to the rhomboh...

  • Article
  • Open Access
3 Citations
2,195 Views
13 Pages

Magnetization Dynamics in FexCo1-x in Presence of Chemical Disorder

  • Banasree Sadhukhan,
  • Raghuveer Chimata,
  • Biplab Sanyal and
  • Abhijit Mookerjee

In this paper, we present a theoretical formulation of magnetization dynamics in disordered binary alloys, based on the Kubo linear response theory, interfaced with a seamless combination of three approaches: density functional-based tight-binding li...

  • Article
  • Open Access
5 Citations
3,934 Views
10 Pages

Possible Formation Mechanism of Lunar Hematite

  • Yue Fu,
  • Huizi Wang,
  • Jiang Zhang,
  • Jian Chen,
  • Quanqi Shi,
  • Chao Yue,
  • Honglei Lin,
  • Ruilong Guo,
  • Anmin Tian and
  • Wensai Shang
  • + 1 author

Hematite, a ferric mineral with diagnostic features in the visible and infrared spectral range, has recently been discovered in the polar regions of the Moon by the Chandrayaan-1 Moon Mineralogy Mapper (M3). The oxygen involving the oxidization proce...

  • Feature Paper
  • Article
  • Open Access
6 Citations
2,255 Views
17 Pages

Magnetic Transition State Searching: Beyond the Static Ion Approximation

  • Robert A. Lawrence,
  • Scott J. Donaldson and
  • Matt I. J. Probert

The effect of structural relaxations on the magnetocrystalline anisotropy energy (MAE) was investigated by using density functional theory (DFT). The theory of the impact of magnetostructural coupling on the MAE was discussed, including the effects o...

  • Feature Paper
  • Review
  • Open Access
14 Citations
4,737 Views
12 Pages

Characteristics and Recent Development of Fluoride Magneto-Optical Crystals

  • Zhonghan Zhang,
  • Zhen Wu,
  • Zhen Zhang,
  • Liangbi Su,
  • Anhua Wu,
  • Yang Li and
  • Jianghe Lan

Magneto-optical materials are the fundamental component of Faraday isolators; therefore, they are significantly important for solid-state laser systems. Fluoride magneto-optical crystals such as CeF3, KTb3F10 and LiTbF4 exhibit advantages of wide tra...

  • Article
  • Open Access
4 Citations
2,262 Views
27 Pages

In this article, a microstructural model of the Heusler alloy with the shape memory effect caused by the application of an external magnetic field is constructed. The dynamics of the magnetization process are described using the Landau–Lifshitz...

  • Article
  • Open Access
3,045 Views
14 Pages

Cluster Observation of Ion Outflow in Middle Altitude LLBL/Cusp from Different Origins

  • Bin Li,
  • Huigen Yang,
  • Jicheng Sun,
  • Zejun Hu,
  • Jianjun Liu,
  • Xiangcai Chen,
  • Yongfu Wang,
  • Jie Ren,
  • Chao Yue and
  • Qiugang Zong
  • + 2 authors

The ionosphere is the ionized part of the upper atmosphere that is caused mainly by photoionization by solar extreme ultraviolet (EUV) emission and the atmospheric photochemistry process. The ionospheric ions escape from the ionosphere and populate t...

  • Article
  • Open Access
10 Citations
3,055 Views
11 Pages

Performance of Magnetic Fluid and Back Blade Combined Seal for Sealing Water

  • Hujun Wang,
  • Zhongquan Gao,
  • Xinzhi He,
  • Zhenkun Li,
  • Jinqiu Zhao,
  • Zhuo Luo and
  • Yaqun Wei

When sealing liquids with magnetic fluid, the interfacial stability problem caused by the interaction between the magnetic fluid and the sealed liquid leads to poor sealing performance. Centrifugal force is generated by the rotation of the sealed liq...

  • Feature Paper
  • Article
  • Open Access
4 Citations
2,842 Views
13 Pages

Nanomaterial Endocytosis: Quantification of Adsorption and Ingestion Mechanisms

  • Abhinav Sannidhi,
  • Chen Zhou,
  • Young Suk Choi,
  • Allan E. David,
  • Paul W. Todd and
  • Thomas R. Hanley

The widespread use of nanomaterials in vaccines, therapeutics, and industrial applications creates an increasing demand for understanding their ingestion by living cells. Researchers in the field have called for a more robust understanding of physica...

  • Article
  • Open Access
4 Citations
3,004 Views
12 Pages

Single-Molecule Magnets Based on Heteroleptic Terbium(III) Trisphthalocyaninate in Solvent-Free and Solvent-Containing Forms

  • Maxim A. Faraonov,
  • Alexander G. Martynov,
  • Marina A. Polovkova,
  • Salavat S. Khasanov,
  • Yulia G. Gorbunova,
  • Aslan Yu. Tsivadze,
  • Akihiro Otsuka,
  • Hideki Yamochi,
  • Hiroshi Kitagawa and
  • Dmitri V. Konarev

Binuclear heteroleptic triple-decker terbium(III) phthalocyaninate (Pc)Tb[(15C5)4Pc]Tb(Pc), where Pc2− is phthalocyaninate dianion and 15C5 is a 15-crown-5 moiety, has been synthesized as a solvent-free powder (1) and a well-defined crystal sol...

  • Article
  • Open Access
5 Citations
2,309 Views
13 Pages

Two-Dimensional Magnetotelluric Parallel-Constrained-Inversion Using Artificial-Fish-Swarm Algorithm

  • Zuzhi Hu,
  • Yanling Shi,
  • Xuejun Liu,
  • Zhanxiang He,
  • Ligui Xu,
  • Xiaoli Mi and
  • Juan Liu

An important way to improve the resolution of electromagnetic exploration is by using known seismic and logging data. Based on previous work, 2D magnetotelluric (MT) parallel-constrained-inversion, based on an artificial-fish-swarm algorithm is furth...

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Magnetochemistry - ISSN 2312-7481